Global Patent Index - EP 1026666 A1

EP 1026666 A1 20000809 - MAGNETIC TAPE

Title (en)

MAGNETIC TAPE

Title (de)

MAGNETBAND

Title (fr)

BANDE MAGNETIQUE

Publication

EP 1026666 A1 20000809 (EN)

Application

EP 98950325 A 19981021

Priority

  • JP 9804766 W 19981021
  • JP 28897397 A 19971021

Abstract (en)

Magnetic tape (1) comprising a substrate, a magnetic layer provided on one side of the substrate and a backcoating layer (5) provided on the other side of the substrate, wherein the backcoating layer (5) is a layer capable of magnetic recording on which three or more servo tracks (10a, 10b, 10c) have magnetically been formed in parallel with the longitudinal direction of the tape, and the backcoating layer (5) has a higher coercive force than the coercive force of the whole of all the layers on the magnetic layer side and a lower saturation flux density than the saturation flux density of the whole of all the layers on the magnetic layer side. <IMAGE>

IPC 1-7

G11B 5/78; G11B 5/704; G11B 5/718

IPC 8 full level

G11B 5/55 (2006.01); G11B 5/584 (2006.01); G11B 5/716 (2006.01); G11B 5/718 (2006.01); G11B 5/73 (2006.01); G11B 5/735 (2006.01); G11B 5/738 (2006.01); G11B 5/78 (2006.01)

CPC (source: EP US)

G11B 5/5504 (2013.01 - EP US); G11B 5/584 (2013.01 - EP US); G11B 5/718 (2013.01 - EP US); G11B 5/78 (2013.01 - EP US); Y10T 428/24942 (2015.01 - EP US); Y10T 428/256 (2015.01 - EP US); Y10T 428/257 (2015.01 - EP US)

Designated contracting state (EPC)

DE GB

DOCDB simple family (publication)

US 2002041982 A1 20020411; AU 9645398 A 19990510; EP 1026666 A1 20000809; EP 1026666 A4 20001206; JP H11126327 A 19990511; US 6319595 B1 20011120; WO 9921178 A1 19990429

DOCDB simple family (application)

US 90747501 A 20010717; AU 9645398 A 19981021; EP 98950325 A 19981021; JP 28897397 A 19971021; JP 9804766 W 19981021; US 52993000 A 20000912